期刊
LANGMUIR
卷 27, 期 11, 页码 7158-7162出版社
AMER CHEMICAL SOC
DOI: 10.1021/la200464t
关键词
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资金
- Ogasawara Foundation for the Promotion of Science and Engineering
- Kato Foundation for Promotion of Science
- Grants-in-Aid for Scientific Research [23750172] Funding Source: KAKEN
In this paper, we report a novel electrochemical doping method for conducting polymer films based on bipolar electrochemistry. The electrochemical doping of conducting polymers such as poly(3-methylthiophene) (PMT), poly(3,4-ethylenedioxythiophene) (PEDOT), and poly(aniline) (PANI) on a bipolar electrode having a potential gradient on its surface successfully created gradually doped materials. In the case of PEDOT film, the color change at the anodic side was also observed to be gradually transparent. PANI film treated by the bipolar doping gave a multicolored gradation across the film. The results of UV-vis and energy dispersive X-ray analyses for the doped films supported the distribution of dopants in the polymer films reflecting the potential gradient on the bipolar electrode. Furthermore, the reversibility of the bipolar doping of the PMT film was demonstrated by a spectroelectrochemical investigation.
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